What is an API? How APIs work, simply explained Contentful Logo De L'application Facebook Au Format Png Free Online Facebook API. Application Programming Interface in the shape of sphere with API, application programming interface vector illustration 3005221 What is an API (Application Programming Interface)? API Pagination in NestJS: A Comprehensive Guide by Solomon_codes Medium. Lowers pH in a freshwater aquarium Works fast Easy to use Is colourless; will not cloud or colour aquarium water Is phosphate free and nitrate free Will not encourage algae growth For fish to thrive, they need the water to be kept at the same pH level that they are accustomed to in nature When testing shows pH to be too high, use pH DOWN to lower it A pH of 6. 87. 2 is ideal for keeping an aquarium containing a variety of tropical fish